9993054691 has 2 divisors, whose sum is σ = 9993054692. Its totient is φ = 9993054690.

The previous prime is 9993054689. The next prime is 9993054727. The reversal of 9993054691 is 1964503999.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9993054691 - 2¹ = 9993054689 is a prime.

It is a super-2 number, since 2×9993054691² (a number of 21 digits) contains 22 as substring.

Together with 9993054689, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (9993054611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4996527345 + 4996527346.

It is an arithmetic number, because the mean of its divisors is an integer number (4996527346).

Almost surely, 2^9993054691 is an apocalyptic number.

9993054691 is a deficient number, since it is larger than the sum of its proper divisors (1).

9993054691 is an equidigital number, since it uses as much as digits as its factorization.

9993054691 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2361960, while the sum is 55.

The square root of 9993054691 is about 99965.2674232406. The cubic root of 9993054691 is about 2153.9358006946.

The spelling of 9993054691 in words is "nine billion, nine hundred ninety-three million, fifty-four thousand, six hundred ninety-one".